NONWOVEN FABRIC FOR HEAT-RETAINING INCLUDING SHAPED CROSS-SECTION HOLLOW FIBER

摘要

The present invention relates to a heat-retaining nonwoven fabric comprising a hollow fiber with a shaped cross-section. The fiber comprises a hollow part, a shape retaining part, and a volume controlling part. The volume controlling part may be in a form protruding in the opposite direction to the center of the fiber. The end part of the hollow fiber with a shaped cross-section is in a round shape. The nonwoven fabric of the present invention provides excellent heat-retaining properties by securing dead air due to separation among fibers by the volume controlling unit. According to an embodiment of the present invention, provided is a hollow fiber with a shaped cross-section, which has high percentage of hollowness while having a stabilized form. The nonwoven fabric of the present invention has excellent elasticity while securing bulkiness and heat-retaining properties.